To evaluate the integral 4 cos x^2 dx dy dz, 2y by changing the order of integration, we first need to determine the limits of integration.
Integrating with respect to x first, we have:
∫∫∫ 4 cos x^2 dx dy dz, 2y
= ∫∫ [2 sin x^2]y=0 to y dz, 2y
= ∫ [2 sin x^2]z=0 to z dz, 2y
= 2y ∫ [sin x^2]z=0 to z dz
Next, integrating with respect to z, we have:
2y ∫ [sin x^2]z=0 to z dz
= 2y [cos x^2]z=0 to z
= 2y [cos z^2 - 1]
Finally, integrating with respect to y, we have:
∫∫∫ 4 cos x^2 dx dy dz, 2y
= ∫∫ 2y [cos z^2 - 1] dy dz
= ∫ [y^2(cos z^2 - 1)]z=0 to z dz
= ∫ y^2(cos z^2 - 1) dz
Therefore, we have changed the order of integration from dx dy dz, 2y to dz dy dx, and the new limits of integration are:
0 ≤ z ≤ √(π/2)
0 ≤ y ≤ √(π/2 - z^2)
0 ≤ x ≤ √(π/2 - y^2 - z^2)
We can now evaluate the integral using these new limits and the equation we derived earlier:
∫∫∫ 4 cos x^2 dx dy dz, 2y
= ∫∫∫ 4 cos x^2 dz dy dx, 2y
= ∫ from 0 to √(π/2) ∫ from 0 to √(π/2 - z^2) ∫ from 0 to √(π/2 - y^2 - z^2) y^2(cos z^2 - 1) dx dy dz
= -4/3π
Therefore, the value of the integral is -4/3π.
To evaluate the integral by changing the order of integration, first, we need to rewrite the given integral in the correct notation. Unfortunately, the provided integral seems to have some errors or missing information, making it difficult to give a complete answer.
Please provide the correct integral and the limits of integration for each variable (x, y, and z) so I can assist you better.
To know more about Integral click here
brainly.com/question/18125359
#SPJ11
An angle measure 94 less than the measure of its supplementary angle. What is the measure of each angle?
The angle measures 43 degrees and its supplementary angle measures 180 - 43 = 137 degrees.
What is the supplementary angle?In geometry, the supplementary angle of an angle is the angle that, when added to the given angle, results in a sum of 180 degrees. In other words, two angles are supplementary if their sum is 180 degrees.
For example, if an angle measures 60 degrees, its supplementary angle would measure 120 degrees, since 60 degrees + 120 degrees = 180 degrees.
According to the given informationLet x be the measure of the angle in degrees.
By definition, the supplementary angle of x measures 180 - x degrees.
We are given that the angle measures 94 degrees less than its supplementary angle, so we can write:
x = (180 - x) - 94
Simplifying and solving for x, we get:
2x = 180 - 94
2x = 86
x = 43
Therefore, the angle measures 43 degrees and its supplementary angle measures 180 - 43 = 137 degrees.
To know more about supplementary angles visit:
brainly.com/question/18164299
#SPJ1
A system of linear equations is shown on the graph.
The graph shows a line that passes through negative 10 comma 10, negative 5 comma 9, and 0 comma 8. The graph also shows another line that passes through negative 8 comma 12, negative 5 comma 9, and 0 comma 4.
What is the solution to the system of equations?
There are infinitely many solutions.
There is no solution.
There is one unique solution (−5, 9).
There is one unique solution (0, 8).
The correct statement regarding the solution to the system of equations is given as follows:
There is one unique solution (−5, 9).
How to define a linear function?The slope-intercept representation of a linear function is given by the equation shown as follows:
y = mx + b
The coefficients m and b have the meaning presented as follows:
m is the slope of the function, representing the increase/decrease in the output variable y when the input variable x is increased by one.b is the y-intercept of the function, representing the numeric value of the function when the input variable x has a value of 0. On a graph, it is the value of y when the graph of the function crosses or touches the y-axis.For the first line, the points are given as follows:
(-10, 10) and (0,8).
Hence the equation is:
y = -0.2x + 8.
For the second line, the points are given as follows:
(-8, 12) and (0,4).
Hence the equation is:
y = -x + 4.
Then the x-coordinate of the solution is obtained as follows:
-0.2x + 8 = -x + 4
0.8x = -4
x = -5.
The y-coordinate is given as follows:
y = -(-5) + 4 = 9.
More can be learned about linear functions at https://brainly.com/question/15602982
#SPJ1
Meena is going to see a movie and is taking her 2 kids. each movie ticket costs $14 and there are an assortment of snacks available to purchase for $5 each. how much total money would meena have to pay for her family if she were to buy 3 snacks for everybody to share? how much would meena have to pay if she bought xx snacks for everybody to share?
Meena would have to pay a total of $57 for her family if she were to buy 3 snacks for everybody to share.
Meena would have to pay a total of $42 + 5xx for her family if she bought xx snacks for everybody to share.
To calculate the total money Meena would have to pay for her family, including movie tickets and snacks, we'll first look at the scenario with 3 snacks to share.
1. Calculate the cost of movie tickets: Meena + 2 kids = 3 tickets at $14 each.
3 tickets * $14 = $42
2. Calculate the cost of 3 snacks at $5 each.
3 snacks * $5 = $15
3. Add the cost of movie tickets and snacks.
$42 + $15 = $57
Meena would have to pay a total of $57 for her family if she were to buy 3 snacks for everybody to share.
For the scenario where she buys xx snacks:
1. Calculate the cost of movie tickets (same as before):
3 tickets * $14 = $42
2. Calculate the cost of xx snacks at $5 each.
xx snacks * $5 = 5xx
3. Add the cost of movie tickets and snacks.
$42 + 5xx = $42 + 5xx
Meena would have to pay a total of $42 + 5xx for her family if she bought xx snacks for everybody to share.
Learn more about "cost": https://brainly.com/question/19104371
#SPJ11
Ayana played Super Star Quest, a video game that involves collecting stars and spending them on power-ups. At the end of each level, the game showed Ayana how many stars she had. Ayana created a line of best fit relating the level, x, to the number of stars, y. The equation for the line of best fit is y= 3 2 x–1. How many stars does this equation predict Ayana will have at the end of level 10?
There would be 14 stars that this equation predicts Ayana will have at the end of level 10.
In this question, we are given an equation for the line of best fit relating the level, x, to the number of stars, y. The equation is y = (3/2)x - 1.
To find the predicted number of stars at the end of level 10, we need to substitute x = 10 into the equation and solve for y.
y = (3/2)x - 1
y = (3/2)(10) - 1
y = 15 - 1
y = 14
Therefore, the equation predicts that Ayana will have 14 stars at the end of level 10.
Learn more about equation at https://brainly.com/question/26155122
#SPJ11
Here is a triangular prism. 4 cm 5 cm 5 cm 10 cm 6 cm answer numerically. units have been provided a. what is the volume of the prism, in cubic centimeters? cm3 b. what is the surface area of the prism, in square centimeters? cm²
A triangular prism is a three-dimensional shape with two parallel triangular bases and three rectangular faces. In this case, the triangular bases have sides of 4 cm, 5 cm, and 5 cm, while the rectangular faces have a length of 10 cm and a height of 6 cm.
To find the volume of the prism, we can use the formula V = Bh, where B is the area of the base and h is the height. The area of a triangle can be found using the formula A = 1/2bh, where b is the base and h is the height.
So, for the triangular base of this prism, we have:
A = 1/2(4 cm)(3 cm) = 6 cm²
The height of the prism is 5 cm, so:
V = Bh = (6 cm²)(5 cm) = 30 cm³
Therefore, the volume of the prism is 30 cubic centimeters.
To find the surface area of the prism, we need to calculate the area of each face and add them up.
The two triangular faces each have an area of:
A = 1/2(4 cm)(5 cm) = 10 cm²
And the three rectangular faces each have an area of:
A = (10 cm)(6 cm) = 60 cm²
So, the total surface area is:
SA = 2(10 cm²) + 3(60 cm²) = 200 cm²
Therefore, the surface area of the prism is 200 square centimeters.
To know more about triangular prism refer here
https://brainly.com/question/24046619#
#SPJ11
Triangle ABC has vertices
A(-3, 3), B(2, 4), and C(-2,
2) and is translated
according to the rule:
(x, y) –> (x+2, y-4).
What are the coordinates
of the vertices of the
translated figure?
The coordinates of the translated triangle A'B'C' are: A'(-1, -1), B'(4, 0), and C'(0, -2).
To find the coordinates of the vertices of the translated figure, we simply apply the given translation rule to each vertex of the original triangle.
For vertex A(-3, 3):
(x, y) --> (x+2, y-4)
(-3, 3) --> (-3+2, 3-4)
(-1, -1)
So, the translated coordinates of vertex A are (-1, -1).
For vertex B(2, 4):
(x, y) --> (x+2, y-4)
(2, 4) --> (2+2, 4-4)
(4, 0)
So, the translated coordinates of vertex B are (4, 0).
For vertex C(-2, 2):
(x, y) --> (x+2, y-4)
(-2, 2) --> (-2+2, 2-4)
(0, -2)
So, the translated coordinates of vertex C are (0, -2).
Therefore, the vertices of the translated triangle are A'(-1, -1), B'(4, 0), and C'(0, -2).
More on translated triangle: https://brainly.com/question/13797451
#SPJ11
Given: AB=CD, AD|| BC, BF=HD, CGE=AHF and AE=FC.
Prove: BAE=DCF
The ∠BAE ≅ ∠DCF by SAS congruence of triangles. The solution has been obtained by using the congruence of triangles.
What is congruence of triangles?
If all three corresponding sides and all three corresponding angles of two triangles have the same size, the triangles are said to be congruent. These triangles can be moved, flipped, twisted, and turned to achieve the same result. They are parallel to one another when moved.
We are given the following:
AB ≅ CD
AD || BC
BG ≅ HD
∠CGE ≅ ∠AHF
AE ≅ FC
Now,
EF ≅ EF as it is the common side
Since, AD || BC so,
∠BCA ≅ ∠CAD as they are alternate interior angles
From this we get that triangle BAC ≅ triangle ACD.
So, the ∠BAE ≅ ∠DCF.
Hence, the ∠BAE ≅ ∠DCF by SAS congruence of triangles.
Learn more about congruence of triangles from the given link
https://brainly.com/question/3999145
#SPJ1
Mike has some candies. he gave some to his friend. then, his mom gave him twice as much as he had in the beginning. how much did he have in the beginning if he has a total of 60 candies now?
According to given question Mike has 25 candies in the beginning.
Let's assume that Mike had "x" candies in the beginning.
After giving 15 candies to his friend, he would have had (x - 15) candies left.
His mom then bought him twice as many candies as he had in the beginning, which would be 2x candies.
So, the total number of candies Mike has now is (x - 15) + 2x = 60.
Combining like terms, we get 3x - 15 = 60.
Adding 15 to both sides, we have 3x = 75.
Finally, dividing both sides by 3, we find that x = 25.
Therefore, Mike had 25 candies in the beginning.
To learn more about equations
https://brainly.com/question/29174899
#SPJ11
The complete question is Mike had some candies. He gave 15 of them to his friend. After that, his mom bought him twice as many candies as he had in the beginning. How many candies did Mike have in the beginning if he now has a total of 60 candies?
An art studio offers classes for painting and pottery. Each painting class is 1
hour long. Each pottery class is 1. 5 hours long. The art studio is only open
for classes a maximum of 40 hours per week, and only one class is offered at
a time. Each class costs $35, and the art studio earns a minimum of $1,000
per week from all classes. Let x be the number of painting classes offered per
week, and let y be the number of pottery classes offered per week.
The art studio can offer a maximum of 8 painting classes and 5 pottery classes per week, while still meeting the time constraint and earning at least $1000 per week.
To find the maximum number of classes the art studio can offer per week, we need to set up an equation based on the time constraint.
Let's assume that the studio offers x painting classes and y pottery classes per week. Since each painting class is 1 hour long and each pottery class is 1.5 hours long, the total time spent on classes can be represented by the equation:
1x + 1.5y ≤ 40
This equation states that the total number of hours spent on painting classes (1x) plus the total number of hours spent on pottery classes (1.5y) must be less than or equal to 40 hours per week.
To find the minimum revenue the art studio can earn per week, we can set up another equation based on the cost of each class and the minimum revenue requirement.
Let's assume that each painting or pottery class costs $35. Then the total revenue earned per week can be represented by the equation:
35x + 35y ≥ 1000
This equation states that the total revenue earned from painting classes (35x) plus the total revenue earned from pottery classes (35y) must be greater than or equal to $1000 per week.
Now we have two equations:
1x + 1.5y ≤ 40
35x + 35y ≥ 1000
We can use these equations to find the maximum number of classes the art studio can offer per week.
To do this, we can graph the two equations on the same coordinate plane and find the point where they intersect.
When we do this, we get the point (x, y) = (8, 16/3).
This means that the art studio can offer a maximum of 8 painting classes and 16/3 (or approximately 5.33) pottery classes per week, while still meeting the time constraint and earning at least $1000 per week.
Note that since the studio can only offer one class at a time, they would need to round down the number of pottery classes to 5 in order to offer a whole number of classes per week.
To learn more about graphs
https://brainly.com/question/23956559
#SPJ11
if a1=5 and an=an-1 -1 then find the value of a4
a4 = 2
It is given that,
[tex]a_{1} = 5[/tex], and
[tex]a_{n} = (a_{n-1}) - 1[/tex]
Therefore, it can be said,
[tex]a_{2} = a_{1} - 1\\a_{3} = a_{2} - 1\\a_{4} = a_{3} - 1\\[/tex]
That is,
[tex]a_{2} = 5-1=4\\a_{3} = 4-1=3\\a_{4} = 3-1=2[/tex]
So, a4 = 2
Read more about Arithmetic progression at:
https://brainly.com/question/16954227
Taylor has 7 pounds of navel oranges and
6 1/2 pounds of temple oranges. if she uses 2 3/4
pounds of navel oranges in a juice, how many pounds of oranges does she have left?
The total of oranges left by the taylor is about 10 3/4 pounds
To solve this problem, we will start by using adding the weights of the navel oranges and temple oranges to discover the total weight of oranges Taylor has, that's:
total weight = 7 pounds + 6 1/2 poundstotal weight = 13 1/2 poundsNext, we are able to subtract the weight of the navel oranges she uses from the total weight of navel oranges to discover how a lot she has left, which is:
Navel oranges left = 7 pounds - 2 3/4 poundsNavel oranges left = 4 1/4 poundsIn the end, we can add the weight of the navel oranges left to the weight of the temple oranges to find the overall weight of oranges Taylor has left, which is:
total oranges left = Navel oranges left + Temple orangestotal oranges left = 4 1/4 pounds + 6 1/2 poundstotal oranges left = 10 3/4 poundsTherefore, the total of oranges left by the taylor is about 10 3/4 pounds
Learn more about subtraction:-
https://brainly.com/question/28467694
#SPJ4
12
Find the lowest common multiple (LCM) of 28, 42 and 63
Show your working clearly.
Answer:
Least Common Multiple (LCM) of 28,42,63 is 252 ∴ So the LCM of the given numbers is 2 x 3 x 7 x 2 x 1 x 3 = 252
Step-by-step explanation:
Answer:
252 is the answer
Step-by-step explanation:
find the multiples of all of them ( and make sure it is the least. )
28:
28, 56, 84, 112, 140, 168, 196, 224, 252, 280, 308
42:
42, 84, 126, 168, 210, 252, 294, 336
63:
63, 126, 189, 252, 315, 378
bolded + undurlined is the answer
you see that 252 is the answer
252 is the answer
What is the answer? I don't understand.
The required height of the trapezoid is 4 ft.
What is trapezoid?In geometry, a quadrilateral with at least one pair of parallel sides is referred to as a trapezoid in American, Canadian, and British English. In Euclidean geometry, a trapezoid is inevitably a convex quadrilateral. The trapezoid's parallel sides are referred to as its bases.
According to question:Given data;
a= 3 ft, b = 7 ft, height = h, Area = 20 sq, ft
So,
Area = (a + b)h/2
20 = (3 + 7)h/2
20 = 10h/2
2 = h/2
h = 4 ft
Thus, required height of the trapezoid is 4 ft.
To know more about Trapezoid visit;
brainly.com/question/29193735
#SPJ1
What is one more solution to the following. i already have the first solution which is x=9 but there is one more.
let f (x) = log3(x) + 3 and g(x) = log3(x3) – 1.
part a: if h(x) = f (x) + g(x), solve for h(x) in simplest form. (4 points)
part b: determine the solution to the system of nonlinear equations.
( i already have the answer to part a as well it should be log3(x^4)+2) i just need the last solution to part b) also im using all my points for this so ya:) have a nice day!
The solutions to the system of nonlinear equations are
x = 9 and x =[tex]3^2[/tex]= 9.
What is the solution to the system of nonlinear equations:f(x) = g(x), where f(x) = log3(x) + 3 and g(x) = log3(x^3) – 1?
To determine the solution to the system of nonlinear equations:
f(x) = g(x)
We can substitute the given expressions for f(x) and g(x) and simplify:
log3(x) + 3 =[tex]log3(x^3) - 1[/tex]
Using the properties of logarithms, we can simplify this equation as follows:
log3(x) + 3 = 3*log3(x) - 1
4 = 2*log3(x)
2 = log3(x)
x =[tex]3^2[/tex]
Therefore, the solutions to the system of nonlinear equations are x = 9 and [tex]x = 3^2 = 9.[/tex]
Learn more about logarithms,
brainly.com/question/20785664
#SPJ11
A segment with endpoints A (2, 6) and C (5, 9) is partitioned by a point B such that AB and BC form a 3:1 ratio. Find B.
A. (2. 33, 6. 33)
B. (3. 5, 10. 5)
C. (3. 66, 7. 66)
D. (4. 25, 8. 25)
To find the coordinates of point B, we can use the section formula which states that the coordinates of the point that divides a segment with endpoints (x1, y1) and (x2, y2) in the ratio of m:n are given by:
((mx2 + nx1)/(m+n), (my2 + ny1)/(m+n))
The coordinates of point B are (4.25, 8.25), and the answer is (D).
Here, A (2, 6) and C (5, 9) are the endpoints of the segment, and we want to partition the segment in the ratio of 3:1. So, we have:
m:n = 3:1
m+n = 4
Solving for m and n, we get:
m = 3, n = 1
Now, substituting values in the section formula, we get:
((35 + 12)/(3+1), (39 + 16)/(3+1)) = (4.25, 8.25)
Therefore, the coordinates of point B are (4.25, 8.25), and the answer is (D).
To know more about segments refer here:
https://brainly.com/question/17107345
#SPJ11
Answer:
(4.25, 8.25)
Step-by-step explanation:
i took the quiz
A toy company recently added some made-to-scale models of racecars to their product line. The length of a certain racecar is 19 ft. Its width is 7 ft. The width of the
die-cast replica is 1. 4 in. Find the length of the model.
Let x be the length of the model. Translate the problem to a proportion. Do not include units of measure.
Length - x = Length
Width -
Width
(Do not simplify. )
H-1
Answer:
Step-by-step explanation:
Since the length of the actual racecar is 19 feet, and the length of the model is represented by x, we can set up the following proportion:
Length (model) / Length (actual) = Width (model) / Width (actual)
This can be written as:
x / 19 ft = 1.4 in / 7 ft
To solve for x, we can cross-multiply and simplify:
x * 7 ft = 19 ft * 1.4 in
x = (19 ft * 1.4 in) / 7 ft
x = 3.8 in
Therefore, the length of the model is 3.8 inches.
To explain this solution in more detail, we can use proportionality concepts and unit conversions. The proportion relates the length and width of the actual racecar to the length and width of the model.
We set up the proportion with the length of the model as the unknown (x) and solve for it by cross-multiplying and simplifying. Since the width of the model and actual racecar are given in different units, we convert the width of the model from inches to feet before using the proportion.
The final answer is expressed in inches, which is the same unit as the width of the model.
To know more about racecar refer here:
https://brainly.com/question/29001698#
#SPJ11
1) Using the definition of the derivative, find f'(x). Then find f'(-3), f'(0), and f'(6) when the derivative exists.
f(x)=36/x
2) Suppose that the total profit in hundreds of dollars from selling x items is given by P(x)=2x^2-5x+7. Find the average rate of change of profit as x changes from 4-6.
f'(x) = -36/x², f'(-3) = -4, f'(0) = Undefined , f'(6) = -1/6
The average rate of change of profit as x changes from 4-6 is 17.
Using the definition of the derivative, find f'(x). Then find f'(-3), f'(0), and f'(6) when the derivative exists. Given f(x) = 36/x. We need to find the derivative of f(x) to solve the problem.
To find the derivative of f(x), we use the quotient rule of differentiation.
(d/dx) (u/v) = [(v × du/dx) - (u × dv/dx)] / v²
The derivative of f(x) using the quotient rule is:
(d/dx)(36/x) = [(x × d/dx (36)) - (36 × d/dx(x))]/(x²)= [-36/x²]
So, f'(x) = -36/x²
Then we can find f'(-3), f'(0), and f'(6) when the derivative exists.
We know f'(x) exists if x ≠ 0.So, f'(-3) = -36/(-3)²= -4 f'(0) = Undefined (since x = 0) f'(6) = -36/6²= -1/6
Suppose that the total profit in hundreds of dollars from selling x items is given by P(x) = 2x² - 5x + 7. We need to find the average rate of change of profit as x changes from 4-6. We know that the average rate of change of a function f(x) over the interval [a, b] is: (f(b) - f(a)) / (b - a)Here, P(x) = 2x² - 5x + 7, a = 4, and b = 6.
So, the average rate of change of profit as x changes from 4-6 is:(P(6) - P(4)) / (6 - 4)=(2(6)² - 5(6) + 7 - 2(4)² + 5(4) - 7) / (6 - 4)= (72 - 30 - 8) / 2= 17
The average rate of change of profit as x changes from 4-6 is 17.
Learn more about Derivatives: https://brainly.com/question/24898810
#SPJ11
Do not answer 7 and 9
Answer:
[tex]32 \div 4 = 8[/tex]
Answer: 32 divided by 4 =8
Step-by-step explanation:
Veronica has a goal of saving $12,000 for a car. She is given $3000 by her grandfather to start a savings account, and she saves an additional $500 each month. Which equation can be used to find the number of months n it will take Veronica to save for the car?
Answer:
m= month 12k - 3500= 950 she needs to save for 2 in a half months to get her car
Step-by-step explanation:
How much more popcorn does the bigger box hold than the smaller box?
\text{cm}^3cm 3
start text, c, m, end text, cubed
\text{Amanda's popcorn container:}Amanda’s popcorn container:start text, A, m, a, n, d, a, apostrophe, s, space, p, o, p, c, o, r, n, space, c, o, n, t, a, i, n, e, r, colon, end text
\text{Mary's popcorn container:}Mary’s popcorn container:start text, M, a, r, y, apostrophe, s, space, p, o, p, c, o, r, n, space, c, o, n, t, a, i, n, e, r, colon, end text
The amount of popcorn the bigger box holds than the smaller box depends on the dimensions of the two containers, so it cannot be determined without additional information.
The difference in the amount of popcorn the two containers hold depends on the volume of each container. Let's assume the volume of Amanda's popcorn container is V1 and the volume of Mary's popcorn container is V2.
If we know the dimensions of both containers, we can calculate their volumes using the formula V = l × w × h, where l is the length, w is the width, and h is the height of the container. Then, we can find the difference in the volumes of the two containers by subtracting V1 from V2.
However, the question does not provide any information about the dimensions of the two containers, so we cannot determine the difference in their volumes. Therefore, the main answer is that the amount of popcorn the bigger box holds than the smaller box cannot be determined without additional information.
For more questions like Volume click the link below:
https://brainly.com/question/1578538
#SPJ11
D. Larry has a new plan. Whenever his need for the car exceeds the number of slots he has rented the car for, he returns the car on time to avoid the fine, and uses his bicycle for the remaining deliveries. Unfortunately, bike deliveries take 3 times longer than car deliveries. Suppose he rents the car for 5 slots (75 minutes). If he needs 7 slots, then he uses the car for 5 slots, and the remaining 2 slots are done by bicycle, which take 6 slots (1. 5 hours). How much time does he expect to bicycle on average (in terms of slots)
Larry uses the car for the first 5 slots (75 minutes) and returns it on time to avoid any fine. He then uses his bike for the remaining 2 slots, which takes 6 slots (3 times longer than using the car).
Therefore, in total, Larry uses the car for 5 slots and the bike for 6 slots, for a total of 11 slots.
On average, Larry expects to use the bike for (6/11) of his total slots. Since each bike delivery takes 3 times longer than a car delivery, we can say that Larry expects to spend 3 times as much time on the bike as he would in the car. Therefore, the average time he expects to spend on the bike (in terms of slots) is:
(6/11) * 3 = 1.636 slots
So, Larry expects to spend an average of 1.636 slots (or about 24.5 minutes) on the bike for each delivery.
To know more about average spending , refer here :
https://brainly.com/question/12763762#
#SPJ11
Determine if each root is a rational or irrational number. explain your reasoning. √ 20 3 √ 96
Both √203 and √96 are irrational numbers since the numbers inside the roots are not perfect squares.
To determine whether a root is rational or irrational, we need to know if the number inside the square root is a perfect square or not. If it is not, then the root is irrational.
For √203, we can determine that 203 is not a perfect square, since the last digit is 3, which is not a perfect square. Therefore, √203 is an irrational number.
For √96, we can simplify the expression as follows:
√96 = √(16*6) = √16 * √6 = 4√6
Since 6 is not a perfect square, 4√6 is an irrational number.
To learn more about rational or irrational number click on,
https://brainly.com/question/16155109
#SPJ4
The line 15 + y = 3x is dilated with a scale factor of 3 about the point (3, -6). Write the equation of the dilated line in slope-intercept form
The equation of the dilated line in slope-intercept form is:
y' = 3x' - 3
To find the equation of the dilated line in slope-intercept form, we'll follow these steps:
1. Convert the original equation into slope-intercept form (y = mx + b).
2. Find the coordinates of the point after dilation.
3. Use the slope from the original equation and the new point to find the new equation.
Step 1: Convert the original equation into slope-intercept form:
15 + y = 3x
y = 3x - 15
Step 2: Find the coordinates of the point after dilation:
Dilation formula: (x', y') = (a(x - h) + h, a(y - k) + k)
Given point (h, k) = (3, -6) and scale factor a = 3
x' = 3(x - 3) + 3
y' = 3(y + 6) - 6
Step 3: Use the slope from the original equation (m = 3) and the new point (x', y') to find the new equation:
y' = 3x' + b
Substitute the expressions for x' and y' from step 2:
3(y + 6) - 6 = 3(3(x - 3) + 3) + b
Simplify the equation and solve for b:
3y + 18 - 6 = 9x - 27 + 9 + b
3y + 12 = 9x - 18 + b
Now, substitute the original point (3, -6) into the equation to find b:
-6 + 12 = 9(3) - 18 + b
6 = 27 - 18 + b
6 = 9 + b
b = -3
The equation of the dilated line in slope-intercept form is:
y' = 3x' - 3
Learn more about slope-intercept,
https://brainly.com/question/1884491
#SPJ11
A rectangle has vertices located at the points: A(-1 1/4,3 1/2), B(2 2/3,3 1/2), C(2 2/3,-1 3/4), D(-1 1/4,-1 3/4). Find the length of BC
The length of BC is 5.25 units. when the rectangle has vertices located at the points: B is ( 2 2/3,3 1/2) and C is (2 2/3,-1 3/4).
We need to find the length of BC. The length of a line segment BC can be calculated using the distance formula. The formula to find the distance between two points (x1, y1) and (x2, y2) is given as :
d = √(x2−x1)²+(y2−y1)²
Given data:
A = (-1 1/4,3 1/2)
B = ( 2 2/3,3 1/2)
C = (2 2/3,-1 3/4)
D = (-1 1/4,-1 3/4)
We need to Convert the B and C mixed numbers to improper fractions, we get,
B = (2+2/3), (3 + 1/2)
= (8/3, 7/2)
C = (2+2/3) , (-1 + 3/4)
= (8/3, -7/4).
Substituting the B and C values into the distance formula, we get:
= √(8/3 − 8/3)² + ( −7/4 − 7/2 )²
= √0 + ( − 21 / 4 )²
= √441/16
[tex]= 21/4[/tex]
[tex]= 5.25[/tex]
Therefore, the length of BC is 5.25 units.
To learn more about the distance formula:
https://brainly.com/question/30395212
#SPJ4
The mathematical phrase 5 + 2 × 18 is an example of a(n)
The mathematical phrase 5 + 2 × 18 is an example of an arithmetic expression.
To solve this expression, follow the order of operations (PEMDAS/BODMAS):
1. Parentheses/Brackets (P/B)
2. Exponents/Orders (E/O)
3. Multiplication and Division (M/D)
4. Addition and Subtraction (A/S)
Your expression: 5 + 2 × 18
Step 1: No parentheses/brackets to solve.
Step 2: No exponents/orders to solve.
Step 3: Solve multiplication: 2 × 18 = 36
Step 4: Solve addition: 5 + 36 = 41
So, the value of the expression 5 + 2 × 18 is 41.
It is important to follow the order of operations when evaluating arithmetic expressions to ensure the correct value is obtained.
An arithmetic expression is a combination of numbers, operators (such as addition, subtraction, multiplication, and division), and parentheses that represents a mathematical calculation. In the given expression, the multiplication operation takes precedence over addition.
According to the order of operations (PEMDAS/BODMAS), multiplication is performed before addition. So, 2 × 18 is evaluated first, resulting in 36, and then 5 + 36 is computed, resulting in 41.
Therefore, the value of the expression is 41. Understanding the order of operations is crucial in correctly evaluating mathematical expressions to obtain accurate results.
To know more about arithmetic expressions refer here:
https://brainly.com/question/17722547
#SPJ11
3.
A local town has a population of 3,500 people and has grown by 2.5% each year. Write an exponential function that models the total population p after t years.
The exponential function that models the total population p after t years is p = 3,500 x 1.025^t.
What is the exponential?To write an exponential function that models the total population of the town after t years, we need to use the formula:
p = p0 x (1 + r)^t
where p0 is the initial population, r is the annual growth rate as a decimal (so in this case, 2.5% = 0.025), and t is the number of years.
In this case, we know that the initial population is 3,500, and the annual growth rate is 2.5%, or 0.025. So we can substitute these values into the formula to get:
p = 3,500 x (1 + 0.025)^t
Simplifying this expression gives:
p = 3,500 x 1.025^t
So the exponential function that models the total population p after t years is:
p(t) = 3,500 x 1.025^t
Note that the function is exponential because the population grows at a constant percentage rate each year, which means that the growth itself is increasing over time.
Learn more about exponential from
https://brainly.com/question/2456547
#SPJ1
Maryam scored 86. 7% on a test with 30 questions on
it. How many questions did Maryam get wrong?
Help!
Maryam answered 26 questions correctly and got 4 questions wrong on the test with 30 questions.
How many questions did Maryam answer incorrectly?To find how many questions Maryam got wrong, we need to first determine how many questions she got right. Since she scored 86.7%, we can multiply the total number of questions by the percentage to get the number of questions she answered correctly.
86.7% of 30 questions is (86.7/100) * 30 = 26.01 questions.
Since Maryam cannot have answered a fractional number of questions correctly, we round down to the nearest whole number. Thus, she answered 26 questions correctly.
To find out how many questions she got wrong, we can simply subtract the number of questions she got right from the total number of questions. Therefore, Maryam got 30 - 26 = 4 questions wrong.
Learn more about questions
brainly.com/question/31278601
#SPJ11
A path 3 feet wide surrounds a rectangular garden that has a length of 20 feet and a width of 12 feet. Find
the area of the path.
The area of the path surrounding a rectangular garden is 105 square feet
The area of path will be given by the relation -
Area of path = Outer area - inner area
Inner area = 20 × 12
Multiply the values
Inner area = 240 square feet
Outer area = (20 + 3) × (12 + 3)
Add the values inside parenthesis
Outer area = 23 × 15
Perform multiplication on Right Hand Side of the equation
Outer area = 345 square feet
Area of path = 345 - 240
Subtract the values
Area of path = 105 square feet
Hence, the area of rectangular path is 105 square feet.
Learn more about rectangle -
https://brainly.com/question/25292087
#SPJ4
13) a 95 percent confidence interval estimate will have a margin of error that is approximately + or - 47.5 percent of the size of the population mean. true or false
False because the statement "a 95 percent confidence interval estimate will have a margin of error.
How to Calculate 95% confidence interval with margin?A 95% confidence interval (CI) estimate is a range of values that is likely to contain the true population mean with 95% confidence. The margin of error for a confidence interval depends on the sample size, the variability of the data, and the desired level of confidence.
The general formula for the margin of error of a 95% confidence interval for the population mean is:
Margin of error = (z-value) x (standard deviation /√n)
where z-value is the number of standard deviations corresponding to the desired level of confidence (for a 95% CI, this value is 1.96), standard deviation is the standard deviation of the sample data, and n is the sample size.
The margin of error is usually expressed as a percentage of the sample mean, not the population mean. Moreover, the percentage of the margin of error is not fixed, but it varies depending on the data and the sample size.
Therefore, the statement "a 95 percent confidence interval estimate will have a margin of error that is approximately + or - 47.5 percent of the size of the population mean" is not correct.
Learn more confidence interval
brainly.com/question/25549885
#SPJ11
A political candidate feels that she performed particularly well in the most recent debate against her opponent. Her campaign manager polled a random sample of 400 likely voters before the debate and a random sample of 500 likel voters after the debate. The 95% confidence interval for the true difference (post-debate minus pre-debate) in proportions of likely voters who would vote for this candidate was (-0. 014, 0. 064). What was the difference (pre- debate minus post-debate) in the sample proportions of likely voters who said they will vote for this candidate?
The difference (pre-debate minus post-debate) in the sample proportions of likely voters who said they would vote for this candidate was approximately 0.025.
We are given a confidence interval of (-0.014, 0.064) for the true difference in proportions of likely voters who would vote for the political candidate before and after the debate. This means that we can be 95% confident that the true difference in proportions falls within this interval.
To find the difference in sample proportions, we need to subtract the pre-debate proportion from the post-debate proportion. Let's call the pre-debate proportion "p1" and the post-debate proportion "p2".
We are not given the sample proportions directly, but we can use the midpoint of the confidence interval as an estimate for the true difference in proportions. The midpoint is (-0.014 + 0.064)/2 = 0.025.
So, we can estimate the difference in sample proportions as:
p2 - p1 = 0.025
This means that the post-debate proportion was 0.025 higher than the pre-debate proportion, on average. Note that we don't know the actual values of p1 and p2, just their difference.
Learn more about confidence interval: https://brainly.com/question/20309162
#SPJ11
